Please call your therapist, as you say he/she's a good one.
But if calling anyone is too hard for now, write here.
What recent events broke you, what is that past that make you feel ashamed. It looks like you already wrote a lot in this forum, so you probably know that here you will always find people that can relate to you. They may find the right words.
As HollyBeans27 said it, we're always here to listen.
I get that you can't see a way forward, that doesn't mean that there is no way forward.
If you allow me, I have one opinion, that is only my thought though, I would never say it is the truth for everyone. If you can't see a way forward, you NEED to trust 100% your therapist or anyone else NOW, not only 99%, and talk and share about EVERYTHING even the worst. And if you just don't trust enough to say it ALL, if you feel too ashamed or guilty saying it all, if you fear too much that you would get hurt in return (by others or yourself), you MUST overcome that fear and any other feeling NOW. I say it again, that is only my opinion, based on my experience. I went through that, it has been pure hell when I did it, because at once I had to TRUST (that I never had done), to accept pure terror and go through it, and to admit and accept that what happened in my past had really happened, and I faced it ALL by telling it. BUT it has been my way of healing and it worked.
If these words were not adapted, please forgive me.
If right now you need warm feelings of care, comfort, support, many of us here have plenty of these to give to you without any doubt. Then, even if it is difficult, maybe you can just welcome these nice feelings the way they are.
For my part I hope I could send you a tiny transforming sparkle of light into your dark times.